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Finding the Fourth Proportional to 530,567.93, 732,196.90 and 288,863.76

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Solution

The fourth proportional to 530,567.93, 732,196.90 and 288,863.76 is: 398,639.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,567.93 : 732,196.90 = 288,863.76 : x
  2. Step 2: Convert to fraction form
    530,567.93/732,196.90 = 288,863.76/x
  3. Step 3: Cross multiply
    530,567.93x = 732,196.90 × 288,863.76
  4. Step 4: Simplify right side
    530,567.93x = 211,505,149,594.34
  5. Step 5: Solve for x
    x = 211,505,149,594.34/530,567.93
  6. Step 6: Final answer
    x = 398,639.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.